Answer:
0.525 %
Step-by-step explanation:
there is a total of 80 students and 42 received a A or B so 42/80 = 0.525
Hope this helps!
Answer:
third one should be about f
2x+4-3x>-1
-x+4>-1
-x>-1-4
-x>-5
X<-5/-1
Hence x<5
Answer:
(a) y = ±(√x)/2
Step-by-step explanation:
You want to find y such that ...
x = f(y)
x = 4y^2 . . . . . . . put in the expression for f(y)
x/4 = y^2 . . . . . . .divide by 4
±√(x/4) = y . . . . . take the square root
y = ±(√y)/2 . . . . . simplify
<span>y = –16x2 + 24x + 1
</span>(downward parabola)
it is a height
when the ball is 6ft above the ground
